No, it can only be obtain by Fist of Guthix.
they get discharged ONLY on death.
The gauntlet are just like gloves only more expensive but they give more defense bonus Warning Only buy gauntlets if you have enough money
Yes
According to the guide at runescape.wikia, they don't normally wear out at all - however, if you die wearing them, they will be worn out. They can be recharged with Fist Of Guthix tokens.
You mean gauntlets?
they degrade and have lower defence because of battles and they can be recharged at the fist of guthix just in the wilderness with 50 tokens
Yes, though they are about half of their fully charged counterparts.
No you will need to get them recharged at the Fist of Guthix.
You need to go to Fist of Guthix and get some Guthix tokens. When you've got some go to Reggie, who is next to the banker most of the time, and give him the required amount of tokens to repair your gauntlets.
I don't know what the best armor is. The most expensive would be a full third age set. My favorite is a full dragon with dragon full helm, dragon boots, worn-out dragon gauntlets, oynox ring and neacklace or on of the full barrows sets. I really don't think there is a "best".
Gauntlent add to your armor. When you buy them at the Grand Exchange they say worn-out gauntlets, but you can repair them buy going to the Fist of Guthix which is located is the wilderness north of varrok. It costs Guthix tokens to repair them (depending on the gauntlets) which at least doubles the armor rating. You may aquire tokens by fighting in the fist of Guthix. Note: Guthix tokens cannot be traded
Mystic armour is good and cheap